Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Section 1.2 - Exponents and Radicals - 1.2 Exercises: 49

Answer

a)$7\sqrt 2$ b)$9\sqrt 3$

Work Step by Step

a)$\sqrt {32}+\sqrt {18}=\sqrt {16}\sqrt {2}+\sqrt 9\sqrt {2}=4\sqrt 2+3\sqrt 2=7\sqrt 2$ b)$\sqrt {75}+\sqrt {48}=\sqrt {25}\sqrt {3}+\sqrt {16}\sqrt {3}=5\sqrt 3+4\sqrt 3=9\sqrt 3$
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